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Power Strokes
6.7 Aftermarket
Gearing for 37's and streetmax
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[QUOTE="The Butcher, post: 1167657, member: 17789"] Put about 100 miles on yesterday with the 4.30 gears. They definitely put some pep back in the step! On the low end it's about like it was with stock tires in terms of throttle response, speed, etc. Great power on the top end too. I noticed a pretty considerable difference in MPG though. Probably lost 2 MPG at 75MPH over the stock gears with 37" tires at 75MPH. New tires are 1" taller and 2" wider, but I didn't think there would be that much of a difference in MPG. Slowing down to 65-70MPH actually helped get it back to the range of where it was with the 37s and stock gears. Overall driveability has been improved with the 4.30s. My RPMs at 70MPH were right around 1900-2000. [/QUOTE]
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6.7 Aftermarket
Gearing for 37's and streetmax
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